Chemical Engineering Journal, Год журнала: 2025, Номер 507, С. 160329 - 160329
Опубликована: Фев. 7, 2025
Язык: Английский
Процитировано
3
Advances in Colloid and Interface Science, Год журнала: 2025, Номер 339, С. 103425 - 103425
Опубликована: Фев. 15, 2025
Язык: Английский
Процитировано
3
Small, Год журнала: 2024, Номер 20(47)
Опубликована: Авг. 14, 2024
Conductive hydrogels have attracted widespread attention in the fields of biomedicine and health monitoring. However, their practical application is severely hindered by lengthy energy-intensive polymerization process weak mechanical properties. Here, a rapid method polyacrylic acid/gelatin double-network organohydrogel designed integrating tannic acid (TA) Ag nanoparticles on conductive MXene nanosheets as catalyst binary solvent water glycerol, requiring no external energy input. The synergistic effect TA NPs maintains dynamic redox activity phenol quinone within system, enhancing efficiency ammonium persulfate to generate radicals, leading 10 min. Also, ternary composite MXene@TA-Ag can act agents, enhanced fillers, adhesion promoters, antibacterial agents organohydrogels, granting them excellent multi-functionality. organohydrogels exhibit stretchability (1740%) high tensile strength (184 kPa). strain sensors based ultrahigh sensitivity (GF = 3.86), low detection limit (0.1%), stability (>1000 cycles, >7 days). These monitor human limb movements, respiratory vocal cord vibration, well various levels arteries. Therefore, this holds potential for applications such monitoring speech recognition.
Язык: Английский
Процитировано
11
Device, Год журнала: 2025, Номер 3(1), С. 100676 - 100676
Опубликована: Янв. 1, 2025
The bigger pictureNanomaterial-driven, soft wearable electronics hold great promise for continuous monitoring of bio-signals, efficient collection physiological data, and on-demand drug delivery. Wearable electronic devices transducing responses into electrical signals have been used in various telemedicine telediagnosis applications, such as real-time vital signs, blood pressure, body temperature, human motion. Combined with radio frequency (RF) technologies, these can transmit health data be powered wirelessly. In this review, we discuss the recent progress one- two-dimensional nanomaterials their intriguing electrical, biochemical, thermal, mechanical properties that make them suitable applications. Human sensing networks built may enable long-term, multi-physiological monitoring, thus facilitating comprehensive across metrics.SummaryNanomaterial-driven, bioelectronics are transforming by offering skin comfort, biocompatibility, capability remote signals. devices, enabled advanced zero-dimensional (0D), one-dimensional (1D), (2D) nanomaterials, achieved new levels stability reliability, allowing to perform effectively even under dynamic physical conditions. Despite promise, significant challenges remain fabrication, integration, practical deployment nanoscale materials devices. Critical include ensuring durability nanomaterial-based extended wear developing integration strategies support multifunctional modalities. Telemedicine has revolutionized healthcare enabling monitoring. within is a central factor driving breakthrough, enhance sensor sensitivity, durability, multifunctionality. These sensors leverage operating principles tailored specific intraocular pressure electrophysiological signal recording, biochemical marker tracking.Graphical abstract
Язык: Английский
Процитировано
1
Polymer, Год журнала: 2025, Номер unknown, С. 128049 - 128049
Опубликована: Янв. 1, 2025
Язык: Английский
Процитировано
1
Applied Physics Letters, Год журнала: 2025, Номер 126(3)
Опубликована: Янв. 20, 2025
Resistive strain sensors show great potential in motion detection, medicine and healthcare, human–machine interaction owing to their ease of fabrication, simple structure, adjustable electrical performance. However, developing high-performance flexible resistive with high sensitivity, linearity, low hysteresis remains a challenge. In this work, we report an LMPs (liquid metal particles)/MXene/AgNWs sensor (LMA sensor) sensitivity (GF = 6.339), linearity (R2 0.982 24), (0.452%). process, AgNWs act as bridge between the MXene nanosheets, change contact area nanosheets under stretching endows sensitivity. The aggregated function structural framework, capitalizing on intrinsic fluidic characteristics serve adhesive silver nanowires (AgNWs) nanosheets. This approach effectively minimizes interstitial spaces MXene. formation Ti-O → Ga3+ coordination bonds has strengthened interfacial interactions. Consequently, demonstrates superior hysteresis. addition, sensitive layer buckled structure is obtained by stretch-release. inhibits inhomogeneous irreversible connection losses material, further improving sensor's mechanical durability. LMA can accurately detect various human activities such breathing expression detection. work will provide avenue for sensors.
Язык: Английский
Процитировано
1
International Journal of Biological Macromolecules, Год журнала: 2025, Номер unknown, С. 141458 - 141458
Опубликована: Фев. 1, 2025
Язык: Английский
Процитировано
1
Advanced Functional Materials, Год журнала: 2025, Номер unknown
Опубликована: Фев. 24, 2025
Abstract Flexible temperature sensors often use gels to achieve skin‐inspired softness, but the water evaporation and freezing of hydrogel leakage ionogel, cause unstable signal transmission inaccurate measurement at sub‐zero temperatures. Here steady hypothermic sensing is achieved by designing a supramolecular elastomer containing two types segments: liquid‐free iontronic segment transmit electrical charges prevent ion leakage, neutral with pendant chains damp vibration for stable transmission. The exhibits excellent tensile properties, adhesiveness, self‐healing, ionic conductivity A wireless system fabricated based on supermolecule elastomer, realizing accurate, steady, sensitive real‐time detection. Especially, sensor coefficient resistance (TCR) 8.87% °C −1 from −20 −15 °C, three five times higher than that most flexible sensors. There no significant difference in detected this an infrared thermal imaging camera. Such represents step toward highly accurate cold chain transportation beyond.
Язык: Английский
Процитировано
1
Gels, Год журнала: 2025, Номер 11(4), С. 258 - 258
Опубликована: Апрель 1, 2025
Conductive hydrogels, integrating high conductivity, mechanical flexibility, and biocompatibility, have emerged as crucial materials driving the evolution of next-generation wearable sensors. Their unique ability to establish seamless interfaces with biological tissues enables real-time acquisition physiological signals, external stimuli, even therapeutic feedback, paving way for intelligent health monitoring personalized medical interventions. To fully harness their potential, significant efforts been dedicated tailoring conductive networks, properties, environmental stability these hydrogels through rational design systematic optimization. This review comprehensively summarizes strategies categorized into metal-based, carbon-based, polymer-based, ionic, hybrid systems. For each type, highlights structural principles, conductivity enhancement, approaches simultaneously enhance robustness long-term under complex environments. Furthermore, emerging applications in sensing systems are thoroughly discussed, covering signal monitoring, mechano-responsive platforms, closed-loop diagnostic–therapeutic Finally, this identifies key challenges offers future perspectives guide development multifunctional, intelligent, scalable hydrogel sensors, accelerating translation advanced flexible electronics smart healthcare technologies.
Язык: Английский
Процитировано
1
Journal of Materials Chemistry A, Год журнала: 2024, Номер unknown
Опубликована: Янв. 1, 2024
A pictographic representation of recent developments in sensors and biosensors made with MXene–polymers composites.
Язык: Английский
Процитировано
7